Bottle portion



FIG. 1 is a perspective view of a bottle portion showing our new design;

FIG. 2 is a front view of the bottle portion depicted in FIG. 1, the opposite rear view and the side views being identical;

FIG. 3 is a bottom view of the bottle portion depicted in FIG. 2; and,

FIG. 4 is a top view of the bottle portion depicted in FIG. 2.

The broken line environmental showing is for illustrative purposes only and does not form part of the claimed design. 

The ornamental design for a bottle portion, as shown and described. 